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This document describes Test Method TM173-2009(2015)e2 for calculating small color differences to determine acceptability. It summarizes: 1. The CMC (A:c) formula is a modification of the CIELAB color-difference formula that better correlates with visual assessments of color differences. 2. CMC calculates color differences using an ellipsoid volume around a standard color, with adjustable semi-axes for lightness, chroma, and hue. 3. Key terms defined include CMC unit, commercial factor, and volume of a

Author

Kunal Shingala

Language

EN